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Professional Series

PS-C63RTLP Low Profile In-Ceiling Speaker

Sonance Professional Series PS-C63RTLP is a 70V/100V/8 Ohm selectable In-Ceiling Speaker that features a shallow 4.37” (111mm) construction for installations in restricted spaces such as beneath HVAC ducting. It also features a one-piece bezel-less grille that is magnetically secured and allows for a one-step painting process to simplify installation and minimize visual distraction.

The optional Square Grille Adapter allows speakers to match the aesthetic of square downlights and HVAC grilles to achieve continual sight lines.

A high-excursion 6.5” polypropylene woofer delivers effortless low bass extension, even at high volumes, while the pivoting chambered 1” soft dome tweeter can be directed to ensure accurate coverage, when speaker positioning is compromised.

The PS-C63RTLP features a sealed metal enclosure with back and side knock-outs, removable Euroblock connector with loop-through, and seismic attachment. Additionally, the Sonance PS-C63RTLP is certified for UL 1480 and UL 2043.

Frequency Range (-10dB)
49Hz – 25kHz
Frequency Range (-3dB)
65Hz – 20kHz
Power Capacity
120 Watts Continuous Program Power | 60 Watts Continuous Pink Noise
Nominal Sensitivity
91 dB
Nominal Coverage Angle
120 degrees conical coverage
Directivity Factor (Q)
Directivity (DI)
7.9 dB
Rated Maximum SPL
108dB @ 1 meter (3.3 feet) average, 116dB peak
Rated Impedance
8 Ohms nominal, 6 Ohms minimum
Transformer Taps
60W, 30W, 15W (7.5W 70V)
Crossover Point
Overall Dimensions
11.06” Diameter x 4.37” Depth (281mm x 111mm)
Cut Out Dimension
10.125” Diameter (257mm)
Net Weight
10.00lbs (4.53kg) each (Preliminary spec – may vary)
Shipping Weight
38.00lbs (17.23kg) pair (Preliminary spec – may vary)
Unit of Measure
Pair (Single, upon request)
Supplied with bezel-less white grille. Optional black grille, or square adapter with black or white grille
LF Driver
6.5″ (165mm) Polypropylene Cone, Butyl Rubber Surround
HF Drive
1” (25mm) Cloth Dome, Pivoting, Ferrofluid cooled
Input Connector
Four pin Euroblock with loop output connections
One back-mounted, one side-mounted .75″ (19mm)
Safety Agency
UL 1480, UL 2043, NFPA 90A, NFPA 70
Ceiling Thickness Range
.125” – 2.0” (3mm – 50mm)
Maximum Ceiling Thickness
1.732” (44mm)
Suspension Points
One, on top surface



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